ALPINE-CVE-2021-25218 — Vulnetix

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ALPINE-CVE-2021-25218 PUBLISHED CVSS 7.5 HIGH

In BIND 9.16.19, 9.17.16. Also, version 9.16.19-S1 of BIND Supported Preview Edition When a vulnerable version of named receives a query under the circumstances described above, the named process will terminate due to a failed assertion check. The vulnerability affects only BIND 9 releases 9.16.19, 9.17.16, and release 9.16.19-S1 of the BIND Supported Preview Edition.

Risk Scores

CVSS v3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected Products

Vendor	Product	Versions
Alpine:v3.19	bind	9.7.2-r0, 9.9.5-r0, 9.9.4_p2-r0
Alpine:v3.16	bind	9.12.3_p1-r0, 9.12.3-r0, 9.12.2_p1-r1
Alpine:v3.14	bind	9.11.2_p1-r0, 9.7.1_p2-r0, 9.7.2-r0
Alpine:v3.12	bind	9.9.5-r0, 9.9.4_p2-r0, 9.9.4_p1-r1
Alpine:v3.13	bind	9.11.0_p2-r0, 0, 9.10.0-r0
Alpine:v3.11	bind	0, 9.9.5-r1, 9.9.4_p2-r1
Alpine:v3.15	bind	9.16.6-r0, 9.16.5-r0, 9.16.19-r0
Alpine:v3.22	bind	9.10.0-r0, 0, 9.10.0-r0
Alpine:v3.17	bind	9.9.4_p2-r0, 9.9.5-r0, 9.10.0-r0
Alpine:v3.23	bind	0, 9.10.0-r0, 9.10.0_p1-r0
Alpine:v3.21	bind	9.9.5-r0, 0, 9.10.0-r0
Alpine:v3.20	bind	9.10.0-r0, 9.9.5-r0, 9.9.4_p2-r0
Alpine:v3.18	bind	9.9.4_p2-r0, 0, 9.9.5-r0

Timeline

Aug 18, 2021 CVE Published
Dec 3, 2025 CVE Updated
Apr 30, 2026 Distribution Patch

References

https://security.alpinelinux.org/vuln/CVE-2021-25218 advisory

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